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01-08-2015 | Scientific Article

Are the osseous and tendinous-cartilaginous tibial tuberosity-trochlear groove distances the same on CT and MRI?

Authors: Betina Bremer Hinckel, Riccardo Gomes Gobbi, Eduardo Noda Kihara Filho, José Ricardo Pécora, Gilberto Luis Camanho, Marcelo Bordalo Rodrigues, Marco Kawamura Demange

Published in: Skeletal Radiology | Issue 8/2015

Abstract

Objective

To verify whether the tibial tuberosity-trochlear groove distance (TT-TG) and the tendinous-cartilaginous TT-TG (the distance between the patellar tendon and trochlear groove: PT-TG) are identical using computed tomography (CT) and magnetic resonance imaging (MRI) techniques.

Subjects and methods

The TT-TG and PT-TG distances were measured on the same knee samples by three observers (two measurements per observer) using CT and MRI scans collected retrospectively. The reproducibility of the measurements was assessed using the interclass correlation coefficient (ICC). The means and standard deviations of four measurements were calculated for each patient. A paired t-test was used to assess differences between measurements.

Results

Fifty knee samples (32 with patellar instability and 18 with other conditions) were evaluated. The inter- and intraobserver reliability was excellent for all four measurements (>0.8). On average, the TT-TG distance on MRI was 3.1–3.6 mm smaller than that on CT, and the PT-TG distance on MRI was 1.0–3.4 mm larger than the TT-TG distance on MRI.

Conclusion

The osseous TT-TG and tendinous-cartilaginous PT-TG distances determined by CT and MRI were not identical.

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Title: Are the osseous and tendinous-cartilaginous tibial tuberosity-trochlear groove distances the same on CT and MRI?
Authors: Betina Bremer Hinckel
Riccardo Gomes Gobbi
Eduardo Noda Kihara Filho
José Ricardo Pécora
Gilberto Luis Camanho
Marcelo Bordalo Rodrigues
Marco Kawamura Demange
Publication date: 01-08-2015
Publisher: Springer Berlin Heidelberg
Published in: Skeletal Radiology / Issue 8/2015
Print ISSN: 0364-2348
Electronic ISSN: 1432-2161
DOI: https://doi.org/10.1007/s00256-015-2118-4

At a glance: The STEP trials

Springer Medicine

Are the osseous and tendinous-cartilaginous tibial tuberosity-trochlear groove distances the same on CT and MRI?

Abstract

Objective

Subjects and methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Objective

Subjects and methods

Results

Conclusion

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